hamilton



(No Model.) 7 I B. F. HAMILTON.

Y GUIDE TRUCK FOR ELECTRIC RAILWAYS'. No. 365,339. Patented June 21, 1887.

Wimesses: v u I: fm/emoi W fiegrmimuw I I I Q?9 J% 4,%

I UNITED STATES PATENT OFFICE.

BENJAMIN F. HAMILTON, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE ENOS ELECTRIC RAILWAY SUPPLY COMPANY, OF SAME PLACE.

GU lDE-TRUK' FO R ELECTRIC RAlLWAYS.

SPECIFICATION forming part of Letters Patent No. 365,339, dated June 21, 1887.

Application filed November 11,1886. Serial No. 218,533. (No model.)

To all whom it may concern:

Be it known that I, BENJAMIN F. HAMILTON, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful. Improvements in Guide-Trucks for Electric Railways; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to hangers and trucks of suspended-car systems, wherein a caris suspended froma single elevated track by means I 5 of a truck running on' such track and a hanger connecting the truck and car, and a guide-rail with which a portion of the hanger engagesin order to steady the car. 7

The present invention relates particularly :0 to means whereby swaying or any undue lateral motion of the car while in motion, or while persons are getting on or off, is prevented; and the object of the invention is to produce What may be termeda guide-truck, which 25, shall be simple and inexpensive in construction and so made that it will be unaffected by curves or inequalities in the track or guide rail with which it is in contact.

With these objects in view my invention re- 0 sides, essentially, in an attachment designed to be secured to the hanger in a system of the v kind above outlined, consisting, essentially, of two wheels arranged uponsuitable shafts having their respective axles at angles to each 5 other and to the hanger to which they are attached, the said Wheels being provided With indented peripheries which receive the guiderail.

Furthermore, the invention resides in an at- 0 tachment consisting, essentially, of the wheels arranged as above set forth and mounted upon yielding and adjustable bearings, whereby inequalities in the track and curves may be passed without jar and without impairing the guiding function of the attachment.

I have illustrated the invention in the accompanying drawings,. in which Figure 1 represents an end View, partly in section, of my attachment; and Fig. 2 represents a side elevation.

In the drawings, A represents the hanger, which depends from a suitable truck running upon an upper rail, (not shown,) and B represents a portion of the car to which the lower end. of the hanger is attached. 1 5 5 0 represents a projection or bracket which is attached to the hanger and extends a suitable distance from the car to bring the wheels D in such position that the indentation d in their peripheries will receive the guide'rail E. The respective shafts D. of the wheels D are attached to suitable portions of the bracket G in such position as to extend at angles to each other and to the hanger. The lower ends of the shafts B rest in sectional blocks d, which are provided with trunnions (Z which rest in sockets upon the projection O, and thus allow a curvilinear movement of the shafts. Y

F represents bolts which extend upward through a plate upon the bracket or projection 0. Upon the upper ends of these bolts, which are capable of adjustment up and down to regulate their position, are placed coiled springs f, which bear against the blocks holding the axles of the wheels D.

In the operation of the guide-wheels all strain is brought upon thesprings f, and these serve also to hold the wheelsin engagement with the guide-rail. In going around 8o curves or in passing over inequalities in the track one or the other of the springs f is compressed, and thus injury to the guide'wheels prevented, while at the same time they are held in proper position to accomplish their 85 purpose.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is- 1 1. The guiding device for suspended rail- 0 ways, consisting, essentially, of the guidewheels mounted at angles to each other and mounted upon a yielding support.

2. The guiding device for elevated railways, consisting of the guide-wheels mounted 5 at angles to each other, provided with indented peripheries and mounted upon axles angles to each other and engaging the guideset in swinging bearings, and springs for holdrail, substantially as described. IO ing the wheels in operative position, suhstan- In testimony whereof Iaflix mysignatnrein tially as described. presence of two witnesses.

3. A guiding device for elevated railways, BENJ. F. HAMILTON. consisting of the projection C, attached to the \Vitnesses: hanger, the movable blocks (1', the axles se- FRANK D. ALLEN, cured in the boxes, and the wheels mounted at ULARENCJI J. Micssrn'z. 

